Mellanox Technologies InfiniScale MIS5022Q-1BRR User Manual page 21

InfiniScale® IV 8-Port QSFP 40 Gb/s InfiniBand Switch User Manual
All firmware updates should be done in-band using Mellanox Firmware Management Tools.
The I2C connector is available only on externally managed switches and is used to update firm-
ware should in-band firmware update not work. You will need to order an MTUSB-1 USB to I2C
adapter to make use of the I2C interface. The I2C connection provides access to Flash and
EEPROMs. This is for advanced users and FAEs only.
The externally managed switches are plug and play and all firmware updates should be
done in-band. The I2C connection should only be used if the firmware image was cor-
rupted to the point that the regular firmware tools cannot successfully reburn the cor-
rect image.
Warning: Any red status LED is cause for concern and must be dealt with immediately.
It can take up to 30 seconds to boot up, during which time the status LED may indicate
red.
Figure 6: RJ45 I2C Connector
Mellanox Technologies
Rev 1.4
21